Spring Chicken Pot Pie with Herbed Crumb Topping and Broccolini

Chicken, Onion, Celery, Carrots, Peas, Chicken Stock (Water, Chicken, Onion, Carrot, Celery, Leeks, Thyme, Garlic), Panko Breadcrumbs (Wheat) All-purpose Flour (Wheat), Butter (Milk), Coconut Milk (Water, Guar Gum, Polysorbate 60, Carboxyl Methyl Cellulose, Sodium Metabisulphite), Thyme, Parsley, Salt, Pepper